Editing Federated identity (section)

{{short description|Identity assurance in IT systems}}
A '''federated identity''' in [[information technology]] is the means of linking a person's [[Digital identity|electronic identity]] and attributes, stored across multiple distinct [[identity management]] systems.<ref>{{cite web|url=http://www.projectliberty.org/liberty/content/download/387/2720/file/Liberty_Federated_Social_Identity.pdf|title=Liberty Alliance Project White Paper: Liberty ID-WSF People Service - federated social identity|editor-last=Madsen|editor-first=Paul|date=5 December 2005|access-date=2013-07-11|archive-date=2018-05-26|archive-url=https://web.archive.org/web/20180526195535/http://www.projectliberty.org/liberty/content/download/387/2720/file/Liberty_Federated_Social_Identity.pdf|url-status=dead}}</ref>

Federated identity is related to [[single sign-on]] (SSO), in which a user's single [[authentication]] ticket, or [[security token|token]], is trusted across multiple IT systems or even organizations.<ref>[https://msdn.microsoft.com/en-gb/library/ff359110.aspx Federated Identity for Web Applications], ''microsoft.com''. Retrieved 3 July 2017.</ref><ref>{{cite book |last1=Gaedke |first1=Martin |last2=Johannes |first2=Meinecke |last3=Nussbaumer |first3=Martin |title=Special interest tracks and posters of the 14th international conference on World Wide Web - WWW '05 |chapter=A modeling approach to federated identity and access management |date=2005-05-01 |url=http://wwwconference.org/www2005/cdrom/docs/p1156.pdf |pages=1156–1157 |doi=10.1145/1062745.1062916 |access-date=2017-07-03 |isbn=978-1595930514 |s2cid=8828239 |archive-date=2017-09-13 |archive-url=https://web.archive.org/web/20170913232609/http://wwwconference.org/www2005/cdrom/docs/p1156.pdf |url-status=dead }}</ref> SSO is a subset of federated identity management, as it relates only to authentication and is understood on the level of technical interoperability, and it would not be possible without some sort of [[federation (information technology)|federation]].<ref name="Chadwick2009">{{cite book|last1=Chadwick|first1=David W.|title=Foundations of Security Analysis and Design V|chapter=Federated Identity Management|volume=5705|year=2009|pages=96–120|issn=0302-9743|doi=10.1007/978-3-642-03829-7_3|chapter-url=https://www.cs.kent.ac.uk/pubs/2009/3030/content.pdf|series=Lecture Notes in Computer Science|isbn=978-3-642-03828-0|citeseerx=10.1.1.250.4705}} Retrieved 2017-07-03.</ref>